Motorist&#39;s goggles.



R. ESNAULT-PELTERIE.

MOTOBISTS GOGGLES. APPLICATION FILED FEB. a, 1907.

Patented Aug. 23, 1910.

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Specification of Letters Patent. Patented Aug. 23, 1910 Applicatlonflled February 8, 1907. Serial No. 856,422.

ject of the invention is to provide a device 'of this general character, of a simple and comparatively inexpensive nature and of a light, compact and" strong construction,

which shall permit of convenient and effective operation and wherein .are embodied certain features of novelty andim rovement.

In cold weather, the inside sur aces ofthe glasses of motorists? goggles frequently become covered with a mist or condensation which prevents the driver from seeing clearly the road and. obstacles encountered therein, and this constitutes a source of danger for -motor'car drivers which it is very desirable to remedy.

A further object of the invention is' to avoid this disadvantage by a novel and improved construction of the go gles or other similar devicesiwherein double glasses are employed spaced apart from each other, and it consists essentially in arra ing in the place of each single glass in the ame of the goggles, two parallel-glass plates having .a

very narrow space between them and also in placing in the lower part. of the frame in a cavity communicatin with thespace inclosed between the two gFasses, a desiccating substance such as lime, chlorid'of calcium etc. By this arrangement three zones of temperature are formed one behind the other. The mist produced by the condensa- .tion of the vapor emanating from the eye of the driver is thus formed less readily because the fall in temperature between the inner face of the glass nearest to the eye and itsouter face is less; The desiccating substance in the frame work serves solely to absorb aqueous vapor present in the intermediate space which is diflicult of access and thus to obviate frequent cleaning thereof.

- The novel features of the invention will be carefully defined in the claims.

In order that my improvements may "be the better understood, I have'illu strated in the accompanying drawings certain forms of my invention, in which drawings,-'

Figure 1 is a front elevation of a pair of goggles showing one embodiment of the invention; Fig. 2 is a cross section on the line :c-.c of Fig. 1; Fig. 3 is a view in elevation, detached, of a frame employed in a further embodiment of the invention; Fi 4 is a vertical section through a goggle including a frame illustrated in Fig. 3; 5 is a jlongitudinal section of the same; Flg. 6 is a view in elevation of a still further embodiment of theinvention; Fig. 7 is a section on the line m-.'r in 6; Fig. 8 is a view in parent material a-a, such as glass, are arranged arallelone to the'other in a frame of suita le form comprising two sections 6 of metal, of channel section and s aced at a very small distance apart. The said sections 6 are so formed at their lower part as to constitute a rece tacle for 'which is provided aalid d, pi'eferab y arranged at the side and in thisreceptacle c is placed a desiocating substance, such as lime, chlorid of calcium, etc.

i In the embodiment of my invention illustrated in Figs. 3, 4, and 5, the distance between the glasses a-a is maintained bymeans of the frame or, washer g, which is formed at its lower part with a perforated enlargement e of crescent shape which serves as a receptacle, for holding the desiccating substance. The part f of this frame or washer is also cut away in such a, manner as to form a series of notches 'which serve to place the part e in communication with the receptac e e.

In the embodiment disclosedin Figs. 6, 7, and 8, a space .or receptacle is provided between the two glasses and into this s ace is introduced a, porous body which has en impre ated or saturated with hygroscopic or des1ccatin substance, such for example,

as fused'calcium chlorid and elastic washers are interposed between the-glasses and the 11.

10. necessar the desiccating substance in the I rims of the mount or frame. For this purpose, the glasses of the goggles are fitted in a metal mount '5 of desired configuration provided with a rim 1'. On the rim 1' of this mount i is first placed a caoutchouc washer 7a with which the first glass 2 contacts. Adjacent this glass is laced a frame m approximating the con guration of the mount 2' except that one end thereof is provided with a straight, side or facet n. In the cavity formed between the mount 2' and this straight side 1., there is placed a suitable porous body 0 having a segmental shape which has been impregnated with a suitable hygroscopic or desiccating material, such as chlorid of calcium. The second glass p is then applied in position and is held therein by a washer g, which is kept in place by means of an oval piece r hinged at 8 to the mount and provided with a small spring fastener t engageable with said mount for holding 'it in closed adjustment. The straight part or facet n of the metal piece or frame we may be provided with openings to facilitate the communication between the two glasses 2, p and the porous body 0 containing the desiccating material. This porous body may be producedfrom refractory earth which has been previously impregnated with fused calcium chlorid, either in the anhydrous state or slightly hydrated.

It is obvious that this invention is not limited to motorists goggles, but may be applied with good results to .all 'kinds of goggles and other optical apparatus such, for example, as the windows of motor cars and the like, where it is important that there should be no mist or condensation upon the inner surface of the glass.

Having thus described my invention, what I claim and desire to secure by Letters Patent is: a I

1. A device of the character described hav ing a frame, parallel glasses carried by the frame and spaced apart to afford a narrow air chamber between them, and'a receptacle carried by the frame and adapted to contain a hygroscopic. substance and capable of communication with the air chamber between the glasses, to permit such substance to abstract the moisture from the air contained in said chamber. 7

2. A device'of the character described havmg a frame, parallel glasses carried by the frame and spaced apart to afford a narrow air chamber between them, and a porous body carried by the-frame, and exposed to the air contained in said air chamber and adaptedto. be impregnated with a hygroscopic substance capable Y of abstracting the moisture from the aircontained in said air chamber. I

3. A device of the character described having a frame, parallel glasses carried by the frame and spaced apart to afford a narrow" air chamber between them, a -receptacle carried by the-frame and adapted to contain a 'hygroscoplc substance and capable of communication with the air chamber between I I the glasses to permit such substance to abstract the-moisture from the air contained in said chamber, an opening in the frame affording access to said receptacle for replenishin such hygroscopic substance and a removable cover for such opening.

4. A device of'the character described'haw ing separable glasses parallel with each other, and a member interposed between said glasses and adapted to maintain them spaced apart to produce a narrow air chamberbetween them, and a receptacle carried by said interposed member and adapted to contain a Y hygroscopic substance and adapted for'communication with the air chamber between the glasses to permit such substance to abstraet the moisturerfrom the air in said air chamber.

- 5. A device of the character described having separable glasses parallel with each other, means for holding said glasses \in hinged relation, and a member interposed between said glasses and adapted to maintain them spaced apart to produce a narrow provided 7 air chamber between them, andwith a receptacle adapted to contain a hygroscopic substance and adapted for, com munication with the air chamber between the glasses to permit such substance to ab-- stract the moisture chamber.

6. A device of the character described havfrom the air-in said ing a frame comprising parts in hinged relation capable of movement toward and from each other, parallel glasses held between said parts,and a member interposed between said glasses and adapted to maintain them spaced apart to afford a narrow air chamber be.-.'

.tween them, and provided with a receptacle adapted to contain a hygroscopic substance and adapted for communication with said air chamber to permit such substance to ab stract the moisture from 'the air contained said chamber.

In witness whereof my name in presence of two wltnesses.

some ESRAULT-Pllh'limll Witnesses: JULns ARMENGAUD, Jeune,

H. C. Com

1 have hereunto signed 

